Patent US3159558A successfully refreshed from Google Patents.
Patent US3132074A successfully refreshed from Google Patents.
US3132074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coating pharmaceutical forms and product thereof
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1959-05-28
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Granted: 1964-05-05
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Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 Edward V Svedres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:10
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/2833; A61K9/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A FILM COATED PHARMACEUTICAL FORM COMPRISING A SOLID MEDICAMENT CONTAINING CORE SUBSTANTIALLY COMPLETELY SURROUNDED BY A FILM FORMING POLYMER CONTAINING A MONOMERIC UNIT DERIVED FROM N-VINYL-OXAZOLIDINONE.
Claim 2
Dependent Claim
26 words
A FILM COATED PHARMACEUTICAL FORM COMPRISING A SOLID MEDICAMENT CONTAINING CORE SUBSTANTIALLY COMPLETELY SURROUNDED BY A FILM FORMING POLYMER CONTAINING A MONOMERIC UNIT DERIVED FROM N-VINYL-OXAZOLIDINONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |